INFOSEC UPS SYSTEM – 15, rue du Moulin – 44880 Sautron – France – www.infosec-ups.com
hotline : +33 (0)2 40 76 15 82 – fax : +33(0)2 40 94 29 51 – hotline@infosec.fr – 07 19 AA 59 205 03
Inverter A-B output (line to
line) short circuited
Voltage waveform abnormal in S
phase
Inverter B-C output (line to
line) short circuited
Voltage waveform abnormal in T
phase
Inverter C-A output (line to
line) short circuited
Inverter current sample abnormal
Inverter A negative power fault
Bypass O/P short circuited
Inverter B negative power fault
Bypass O/P line to line short
circuited
Inverter C negative power fault
Inverter SCR short circuited
Battery SCR short circuited
BUS voltage drops too fast
Inverter relay open circuited
Current sampling error value
Inverter relay short circuited
Parallel communication failure
PFC IGBT over-current in R phase
PFC IGBT over-current in S phase
Synchronous signal failure
PFC IGBT over-current in T phase
Synchronous trigger signal
failure
INV IGBT over-current in R phase
Parallel communication loss
INV IGBT over-current in S phase
Parallel output current
unbalance
INV IGBT over-current in T phase
Beeping twice every second
Fan failure / Overheating
Fan failure / Overheating
Other warnings (refer to
3-11)
Other warnings (refer to
3-11)
Line situations are different in
parallel system
Bypass situations are different in